Research Article| March 01, 1992 Mentawai fault zone off Sumatra: A new key to the geodynamics of western Indonesia M. Diament; M. Diament 1Institut de Physique du Globe de Paris, 4 place Jussieu, B89, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar H. Harjono; H. Harjono 2Puslitbang Geoteknologi-LIPI, JI. Cisitu 21/154D, Bandung, 40135 Indonesia Search for other works by this author on: GSW Google Scholar K. Karta; K. Karta 3Lembaga Minyak dan Gas, Jakarta, Indonesia Search for other works by this author on: GSW Google Scholar C. Deplus; C. Deplus 1Institut de Physique du Globe de Paris, 4 place Jussieu, B89, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar D. Dahrin; D. Dahrin 1Institut de Physique du Globe de Paris, 4 place Jussieu, B89, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar M. T. Zen, Jr.; M. T. Zen, Jr. 1Institut de Physique du Globe de Paris, 4 place Jussieu, B89, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar M. Gérard; M. Gérard 4Département des Sciences de la Terre, Université Paris-Sud, 91405 Orsay Cedex, France Search for other works by this author on: GSW Google Scholar O. Lassal; O. Lassal 4Département des Sciences de la Terre, Université Paris-Sud, 91405 Orsay Cedex, France Search for other works by this author on: GSW Google Scholar A. Martin; A. Martin 4Département des Sciences de la Terre, Université Paris-Sud, 91405 Orsay Cedex, France Search for other works by this author on: GSW Google Scholar J. Malod J. Malod 5GEMCO, Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar Geology (1992) 20 (3): 259–262. https://doi.org/10.1130/0091-7613(1992)020<0259:MFZOSA>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation M. Diament, H. Harjono, K. Karta, C. Deplus, D. Dahrin, M. T. Zen, M. Gérard, O. Lassal, A. Martin, J. Malod; Mentawai fault zone off Sumatra: A new key to the geodynamics of western Indonesia. Geology 1992;; 20 (3): 259–262. doi: https://doi.org/10.1130/0091-7613(1992)020<0259:MFZOSA>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The geodynamic evolution of the western part of the Sunda arc is controlled by the change from frontal subduction of the Indo-Australian plate along Java to oblique subduction along Sumatra. This obliquity gives rise to the Sumatra fault zone that links the accretionary zone of the Andaman Sea to the Sunda Strait. Previous studies have shown a decrease of displacement rate of the movement along the fault zone from north to south. Consequently, it has been proposed that the area between the subduction zone and the fault zone—i.e., the Sumatra sliver platelet—was deformed. An oceanographic cruise on the Indonesian ship R/V Baruna Jaya III was designed to study this area. Seismic reflection data reveal the existence of a major strike-slip fault, parallel to the Sumatra fault zone, that we called the Mentawai fault zone, located in the fore-arc area just east of the Mentawai Islands; it is at least 600 km long. Thus, the Sumatra sliver plate appears to be composed of several strips that move toward the northwest to accommodate the oblique subduction. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.